A New Efficiency-Improvement Low-Ripple Charge-Pump Boost Converter Using Adaptive Slope Generator With Hysteresis Voltage Comparison Techniques

Author

Yuh-Shyan Hwang ; Yi-Tsen Ku ; An Liu ; Chia-Hsuan Chen ; Jiann-Jong Chen

Author_Institution

Dept. of Electron. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan

Volume

23

Issue

5

fYear

2015

fDate

May-15

Firstpage

935

Lastpage

943

Abstract

The new efficiency-improvement low-ripple charge-pump boost converter using adaptive slope generator with hysteresis voltage comparison techniques is proposed in this paper. This proposed converter can reduce output voltage ripple, because its inductor is connected to the output. This proposed converter adopts a new controlled architecture, self-adaptive slope generator with hysteresis comparison technology, to shorten the transient response. The proposed boost converter has been fabricated with TSMC 0.35-μm CMOS 2P4M processes, and a total chip area of 1.49 mm × 1.49 mm. Its maximum output current is 260 mA when the output voltage is 3.6 V. When the supply voltage is 3.3 V, the output voltage can be 3.6-5.1 V. The maximum efficiency is 90.99% and the minimum output ripple is 10.8 mV. Finally, the theoretical analysis is verified to be correct by the experimental results.

Keywords

CMOS integrated circuits; inductors; integrated circuit manufacture; power convertors; transient response; CMOS; boost converter; current 260 mA; hysteresis voltage comparison; inductor; self-adaptive slope generator; size 0.35 mum; size 1.49 mm; transient response; voltage 10.8 mV; voltage 3.3 V; voltage 3.6 V to 5.1 V; voltage ripple; Adders; Capacitors; Charge pumps; Generators; Hysteresis; Inductors; Power transistors; Adaptive slope generator; boost converter; buck converter; dc-dc; dc???dc; hysteresis voltage comparator; low-ripple; switching capacitor converter; switching capacitor converter.;

fLanguage

English

Journal_Title

Very Large Scale Integration (VLSI) Systems, IEEE Transactions on

Publisher

ieee

ISSN

1063-8210

Type

jour

DOI

10.1109/TVLSI.2014.2331315

Filename

6851196